java微信企业付款

package com.dlkj.leigame.servlet;


import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.text.ParseException;
import java.util.*;
import java.util.Map.Entry;
import javax.net.ssl.SSLContext;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContexts;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;




public class WeixinDraw {
// private static Logger logger = Logger.getLogger(Background.class);
/**
* @author 孙超
* @date 2017-11-13下午2:29:34
* @Description：微信支付，企业向个人付款
* @param openid
*            收款人的openID(微信的openID)
* @param amount
*            付款金额
* @param desc
*            付款描述
* @param partner_trade_no
*            订单号(系统业务逻辑用到的订单号)
* @return map{state:SUCCESS/FAIL}{payment_no:
*         '支付成功后，微信返回的订单号'}{payment_time:'支付成功的时间'}{err_code:'支付失败后，返回的错误代码'}{err_code_des:'支付失败后，返回的错误描
*         述 ' }
* @throws ParseException
* @throws IOException
* @throws NoSuchAlgorithmException
* @throws CertificateException
* @throws KeyStoreException
* @throws KeyManagementException
* @throws UnrecoverableKeyException
* @throws DocumentException
*/
public static Map<String, String> transfer(String openid, int amount, String desc, String partner_trade_no) {
Map<String, String> map = new HashMap<String, String>(); // 定义一个返回MAP
try {
// 读取配置文件信息，包括微信支付的APPID，商户ID和证书路径
InputStream configFile = WeixinDraw.class.getResourceAsStream("weixin.config.xml");//xml微信配置文件
SAXReader reader = new SAXReader();
Document doc = reader.read(configFile);
Element config = doc.getRootElement();
String url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";
InetAddress ia = InetAddress.getLocalHost();
String ip = ia.getHostAddress(); // 获取本机IP地址
String uuid = UUID.randomUUID().toString().toUpperCase().replaceAll("-", "");// 随机获取UUID
String appid = config.elementTextTrim("appKey");// 微信分配的公众账号ID（企业号corpid即为此appId）
String mchid = config.elementTextTrim("mchid");// 微信支付分配的商户号

// 设置支付参数
SortedMap<Object, Object> signParams = new TreeMap<Object, Object>();
signParams.put("mch_appid", appid); // 微信分配的公众账号ID（企业号corpid即为此appId）
signParams.put("mchid", mchid);// 微信支付分配的商户号
signParams.put("nonce_str", uuid); // 随机字符串，不长于32位
signParams.put("partner_trade_no", partner_trade_no); // 商户订单号，需保持唯一性
signParams.put("openid", openid); // 商户appid下，某用户的openid
signParams.put("check_name", "NO_CHECK"); // NO_CHECK：不校验真实姓名
// FORCE_CHECK：强校验真实姓名（未实名认证的用户会校验失败，无法转账）
// OPTION_CHECK：针对已实名认证的用户才校验真实姓名（未实名认证用户不校验，可以转账成功）
signParams.put("amount", amount); // 企业付款金额，单位为分
signParams.put("desc", desc); // 企业付款操作说明信息。必填。
signParams.put("spbill_create_ip", ip); // 调用接口的机器Ip地址
// 生成支付签名，要采用URLENCODER的原始值进行MD5算法
String sign = "";
sign = createSign("UTF-8", signParams);
// System.out.println(sign);
String data = "<xml><mch_appid>";
data += appid + "</mch_appid><mchid>"; // APPID
data += mchid + "</mchid><nonce_str>"; // 商户ID
data += uuid + "</nonce_str><partner_trade_no>"; // 随机字符串
data += partner_trade_no + "</partner_trade_no><openid>"; // 订单号
data += openid + "</openid><check_name>NO_CHECK</check_name><amount>"; // 是否强制实名验证
data += amount + "</amount><desc>"; // 企业付款金额，单位为分
data += desc + "</desc><spbill_create_ip>"; // 企业付款操作说明信息。必填。
data += ip + "</spbill_create_ip><sign>";// 调用接口的机器Ip地址
data += sign + "</sign></xml>";// 签名
System.out.println(data);
// 获取证书，发送POST请求；
    KeyStore keyStore = KeyStore.getInstance("PKCS12");
FileInputStream instream = new FileInputStream(new File(config.elementTextTrim("cert_path"))); // 从配置文件里读取证书的路径信息
keyStore.load(instream, mchid.toCharArray());// 证书密码是商户ID
instream.close();
SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore, mchid.toCharArray()).build();
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext, new String[] { "TLSv1" }, null, SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();
HttpPost httpost = new HttpPost(url); 
httpost.addHeader("Connection", "keep-alive");
httpost.addHeader("Accept", "*/*");
httpost.addHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
httpost.addHeader("Host", "api.mch.weixin.qq.com");
httpost.addHeader("X-Requested-With", "XMLHttpRequest");
httpost.addHeader("Cache-Control", "max-age=0");
httpost.addHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0) ");
httpost.setEntity(new StringEntity(data, "UTF-8"));
CloseableHttpResponse response = httpclient.execute(httpost);
HttpEntity entity = response.getEntity();
String jsonStr = EntityUtils.toString(response.getEntity(), "UTF-8");
EntityUtils.consume(entity);
// 把返回的字符串解释成DOM节点
Document dom = DocumentHelper.parseText(jsonStr);
Element root = dom.getRootElement();
String returnCode = root.element("result_code").getText(); // 获取返回代码
if (StringUtils.equals(returnCode, "SUCCESS")) { // 判断返回码为成功还是失败
String payment_no = root.element("payment_no").getText(); // 获取支付流水号
String payment_time = root.element("payment_time").getText(); // 获取支付时间
map.put("state", returnCode);
map.put("payment_no", payment_no);
map.put("payment_time", payment_time);

return map;
} else {
String err_code = root.element("err_code").getText(); // 获取错误代码
String err_code_des = root.element("err_code_des").getText();// 获取错误描述
map.put("state", returnCode);// state
map.put("err_code", err_code);// err_code
map.put("err_code_des", err_code_des);// err_code_des

return map;
}


} catch (DocumentException ex) {
ex.printStackTrace();
return map;
} catch (UnrecoverableKeyException ex) {
ex.printStackTrace();
return map;
} catch (KeyManagementException ex) {
ex.printStackTrace();
return map;
} catch (KeyStoreException ex) {
ex.printStackTrace();
return map;
} catch (CertificateException ex) {
ex.printStackTrace();
return map;
} catch (IOException ex) {
ex.printStackTrace();
return map;
} catch (NoSuchAlgorithmException ex) {
ex.printStackTrace();
return map;
}
}


/**
* @author 孙超
* @date 2017-11-13下午2:29:34
* @Description：sign签名
* @param characterEncoding
*            编码格式
* @param parameters
*            请求参数
* @return
*/
private static String createSign(String characterEncoding, SortedMap<Object, Object> parameters) {
StringBuffer sb = new StringBuffer();
Set<Entry<Object, Object>> es = parameters.entrySet();
Iterator<Entry<Object, Object>> it = es.iterator();
while (it.hasNext()) {
Entry<Object, Object> entry = it.next();
String k = (String) entry.getKey();
Object v = entry.getValue();
if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) {
sb.append(k + "=" + v + "&");
}
}
sb.append("key=" + "dl98sdsdsdsdssdsdsssd1603um");//appid对应的key
String sign = MD5Encode(sb.toString(), characterEncoding).toUpperCase();
return sign;
}


// MD5Util工具类中相关的方法


private static String byteArrayToHexString(byte b[]) {
StringBuffer resultSb = new StringBuffer();
for (int i = 0; i < b.length; i++)
resultSb.append(byteToHexString(b[i]));


return resultSb.toString();
}


private static String byteToHexString(byte b) {
int n = b;
if (n < 0)
n += 256;
int d1 = n / 16;
int d2 = n % 16;
return hexDigits[d1] + hexDigits[d2];
}


private static String MD5Encode(String origin, String charsetname) {
String resultString = null;
try {
resultString = new String(origin);
MessageDigest md = MessageDigest.getInstance("MD5");
if (charsetname == null || "".equals(charsetname))
resultString = byteArrayToHexString(md.digest(resultString.getBytes()));
else
resultString = byteArrayToHexString(md.digest(resultString.getBytes(charsetname)));
} catch (Exception exception) {
}
return resultString;
}


private static final String hexDigits[] = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };

//运行main方法，可以测试配置是否正确。配置信息写在同级目录的 weinxin.config.xml里
public static void main(String[] args) throws Exception {
String openid = "oMoY0wHaSawqwqeqweqweqweqwe";//提款人微信对应的公众号openID
int amount = 100;  //最低付款金额为100分。付款金额以分为单位 
String desc = "提现";
String partner_trade_no = "1237894560919"; //同一单号不可以重复提交，如果重复提交同一单号，微信以为是同一次付款，只要成功一次，以后都会无视。
Map<String, String> map = transfer(openid, amount, desc, partner_trade_no);
if (StringUtils.equals(map.get("state"), "SUCCESS")) {
System.out.println("1:"+map.get("payment_no"));
System.out.println("2:"+map.get("payment_time"));
} else {
System.out.println("3:"+map.get("err_code"));
System.out.println("4:"+map.get("err_code_des"));
}
}
/**
* weinxin.config.xml文件内容
* */
//<config> 
//<!-- 配置成自己申请的微信应用的参数 -->
//<appKey>wx9999xxxxxxx</appKey>
//<mchid>141111111</mchid>  <!--商户号-->
//<cert_path>C:\apiclient_cert.p12</cert_path><!--商户证书-->
//</config>
    

}